$OpenBSD: patch-src_gui_docks_dock_children_cpp,v 1.1 2015/09/24 10:40:16 ajacoutot Exp $

Fix build with libsigc++ >= 2.6.0.

--- src/gui/docks/dock_children.cpp.orig	Thu Jul  9 09:33:04 2015
+++ src/gui/docks/dock_children.cpp	Thu Sep 24 11:08:06 2015
@@ -37,7 +37,6 @@
 #include <cassert>
 #include "instance.h"
 #include <sigc++/signal.h>
-#include <sigc++/hide.h>
 #include <sigc++/retype_return.h>
 #include <sigc++/slot.h>
 #include "trees/childrentreestore.h"
